Hi topesis,

Rest assured, I did spend a long time looking at the Eth tokens and use cases. There's a couple of reason for sticking with counterparty, the first is that working with Solidity (the language for Ethereum contracts) to manage tokens is still very, very rough, and very difficult to work with programmaticly. It's almost 100 lines of complex code to issue a token in Solidity/Eth whereas in Counterparty, it's about 6 lines of code. In fact, on the Ethereum page itself, it says "The token contract is quite complex".  I can appreciate that, Vitalik is a very smart guy, but it's not path I can really take at this point with the game development.  There are also some known issues with using Eth tokens that came to light with the Golem project that allows tokens to be transferred with a modified private key.

So for compatibility and low-risk, we're sticking with counterparty as the platform of choice for now. This is the same system that Book of Orbs, Spells of Genesis, Age of Chains, and Rarepepe uses.  This also allows us to work with those cards as well in the game if we want to adopt them into the gameplay. 

The thing is that cards can be left in your counterparty wallet and you can use them in the game, so you don't have to transfer them to the game wallet to use your cards in game.  Rustbits themselves are used to buy the cards, so you won't be using the rustbits to buy a weapon in the game.  You can earn rustbits in the game and use them off-chain, or move them to your counterparty wallet later if you want.

So the use case for Storj is quite a bit different since that's only currency they will work on. I hope that explains a little more in the direction of the game and why we're using counterparty and not ethereum tokens